#223c66

Color #223c66

A moderately saturated dark blue.

Closest named color Charcoal #36454f · ΔE 21.56 Nearest Tailwind class slate-700 #314158 · ΔE 5.7

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Conversions

HEX

#223c66

RGB

rgb(34, 60, 102)

HSL

hsl(217.1, 50%, 26.7%)

HSV / HSB

hsv(217.1, 66.7%, 40%)

CMYK

cmyk(66.7%, 41.2%, 0%, 60%)

LAB

lab(25.35, 4.92, -27.68)

LCH

lch(25.35, 28.11, 280.08)

OKLCH

oklch(35.8%, 0.08, 259.56)

HWB

hwb(217.1, 13.3%, 60%)

Harmony colors

Complementary

#664c22

Analogous

#225e66

#223c66

#2a2266

Triadic

#223c66

#66223c

#3c6622

Split-complementary

#223c66

#662a22

#5e6622

Tetradic

#223c66

#4c2266

#664c22

#3c6622

Square

#223c66

#66225e

#664c22

#22662a

Shades

Color #223c66 mixed toward black.

#1c3255

#172844

#111e33

#0b1422

#060a11

Tints

Color #223c66 mixed toward white.

#325795

#4474c1

#7396d0

#a2b9e0

#d0dcef

Tones

Color #223c66 mixed toward gray.

#283d60

#2d3f5b

#334055

#39414f

#3e434a

Accessibility

Aa White text on this color

11.02:1

Aa Black text on this color

1.91:1

White text reads better on this background (11.02:1). That passes WCAG AAA (≥7:1) for normal-size text.

Under color vision deficiencies

Protanopia

#2f2f5e · ΔE 7.4

Deuteranopia

#2e2c5c · ΔE 8.3

Tritanopia

#245755 · ΔE 23.1

Achromatopsia

#3c3c3c · ΔE 17.4

Left half is the original, right half is the simulated appearance. See all 8 vision types →

Code

CSS

background-color: #223c66;

Tailwind (arbitrary value)

bg-[#223c66]

Related colors

Cornflower Blue #6495ed

Light Steel Blue #b0c4de

Light Slate Gray #778899

Slate Gray #708090

Dodger Blue #1e90ff

Royal Blue #4169e1

Frequently asked questions

#223c66 (#223c66) is rgb(34, 60, 102) in RGB.

No, #223c66 is not one of the 216 web-safe colors — for that, every RGB channel would have to be a multiple of 51.

Related tools

Colors

HEX to RGB Converter

Convert any HEX color code to its RGB and HSL equivalents, live, with copy-to-clipboard values.

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Contrast Checker

Check the WCAG contrast ratio between any two colors, live, with AA/AAA pass-fail results.

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Palette Generator

Generate complementary, analogous, triadic, split-complementary, tetradic, square, and monochromatic palettes from any base color.

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Build something with this color

Generate a full palette from #223c66, or check how it holds up for accessibility.

Generate a palette → Check contrast